You are buying 50ea waterproof heat shrink 10-12 butt connectors.
Ships from Florida USA, so no long waits.
An easy one step connection for wires, soldered, insulated and sealed.
Polyolefin tubing outside and hot melt adhesive in inside
Solder and seal with advanced waterproofing.
Polyolefin heat shrink butt connectors provide improved pullout strength,
seal, strain relief, cable check, and insulation.
diameter 1.5mm/0.05inch, cable cross-section 4-6 mm⊃2;